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DCP-LETT-9055

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
13 Sept [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-15)
Summary:

Thanks JSBS for telegraphing his results, which seem very remarkable; feels he should now try Drosera.

Contributor:
Darwin Correspondence Project

DCP-LETT-9056

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
14 Sept [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-9)
Summary:

Very pleased at JSBS’s discovery ["On the electrical phenomena which accompany the contractions of the leaf of Dionaea muscipula", Rep. BAAS 43 (1873): 133].

Asks for pure animal substances [proteins] for Drosera experiments. His other sources have been T. L. Brunton, Edward Frankland, W. A. Miller (now dead), and Hoffmann of Berlin [A. W. von Hofmann?].

Contributor:
Darwin Correspondence Project

DCP-LETT-9081

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
1 Oct [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-7)
Summary:

Hears from Frank [Darwin] that Drosera behaves perversely. Suggests that motor influence may move longitudinally away from the excited glands.

Contributor:
Darwin Correspondence Project

DCP-LETT-9143

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
15 Nov [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-12)
Summary:

Frankland is sending JSBS organic acids for him to try artificial digestion. CD will send globulin and haemoglobin.

Contributor:
Darwin Correspondence Project

DCP-LETT-9155

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
19 Nov [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-6)
Summary:

Sends the very little globulin and haemoglobin he has to be tested with artificial gastric juice. He could get more from Samuel William Moore. Perhaps T. L. Brunton knows about the digestion of chlorophyll by animals.

Contributor:
Darwin Correspondence Project

DCP-LETT-9368

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
21 Mar 1874
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-16)
Summary:

Sends his MS on Dionaea and hopes it may be useful for JSBS’s lecture ["On the mechanism of the leaf of Dionaea muscipula", Not. Proc. R. Inst. G. B. 7 (1874): 332–5].

Contributor:
Darwin Correspondence Project

DCP-LETT-9370A

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
23 Mar [1874]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-36)
Summary:

Thanks for MS which he intends to read while on a week’s holiday.

Sends thanks for Francis Darwin’s offer of help and says that Francis’s experiments on digestion are complete.

Contributor:
Darwin Correspondence Project

DCP-LETT-9381

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
31 Mar [1874]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-5)
Summary:

Thanks for the careful experiments, particularly on organic acids.

Contributor:
Darwin Correspondence Project

DCP-LETT-9441

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
5 May [1874]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-4)
Summary:

Thanks for the acid digestion experiments, which can be printed as they are. CD trying Drosera on dentine and enamel.

Contributor:
Darwin Correspondence Project

DCP-LETT-9459

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
14 May 1874
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-17)
Summary:

Discusses digestion by insectivorous plants, asks JSBS to try same experiments using pepsin as the digestive agent to see how the results compare with CD’s observations on digestive power of Drosera.

Contributor:
Darwin Correspondence Project

DCP-LETT-9473

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
27 May [1874]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-3)
Summary:

Thanks JSBS for his work. CD concludes the ferment of Drosera must differ from pepsin.

Contributor:
Darwin Correspondence Project

DCP-LETT-9489

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
12 June 1874
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-18)
Summary:

JSBS’s article in Nature ["Venus’s fly-trap", 10 (1874): 105–7, 127–8] could not have been better done.

Has found another plant, Pinguicula, which can catch and digest flies.

Contributor:
Darwin Correspondence Project

DCP-LETT-9504

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
21 June [1874]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-2)
Summary:

Thanks for fibrin. Drosera and Pinguicula dissolve it thoroughly.

Contributor:
Darwin Correspondence Project

DCP-LETT-9669

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
9 Oct 1874
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-19)
Summary:

Has been testing the digestive powers of Drosera; wants to know whether a group of substances that elicit similar responses are related.

Contributor:
Darwin Correspondence Project

DCP-LETT-9678

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
13 Oct 1874
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-20)
Summary:

Discusses the powers of digestion of Drosera and why certain substances produce less excitement in the plant than others.

Contributor:
Darwin Correspondence Project

DCP-LETT-9684

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
18 Oct [1873]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-26)
Summary:

Suggests experiments on artificial digestion.

Contributor:
Darwin Correspondence Project

DCP-LETT-9849

From:
Charles Robert Darwin
To:
John Scott Burdon Sanderson, 1st baronet
Date:
10 Feb 1875
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-21)
Summary:

Has been experimenting with phosphates on Drosera and wonders whether animals digest a particular one.

Asks whether Huxley has approached him regarding the introduction of a vivisection act.

Contributor:
Darwin Correspondence Project

DCP-LETT-9853B

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
12 Feb 1875
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-39)
Summary:

Discusses the experiments with phosphates on Drosera and animals.

Considers the question of preparing a petition on the question of animal experiments, with the aim of promoting rather than hindering science. [Response to 9849.]

Contributor:
Darwin Correspondence Project

DCP-LETT-9909A

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
[12 Apr 1875]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-27)
Summary:

Considers the question of recognised lecturers being allowed a licence to perform animal experiments without having to obtain a certificate of fitness.

Contributor:
Darwin Correspondence Project

DCP-LETT-9917A

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
7 Apr [1875]
Source of text:
University of British Columbia Library, Rare Books and Special Collections (Darwin - Burdon Sanderson letters RBSC-ARC-1731-1-30)
Summary:

Sends the Memorial [concerning animal experimentation].

Contributor:
Darwin Correspondence Project
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